Question
Consider the following for the two (02) items that follow: Let 2 + = 2, where 0 What is equal to?
NDA
Mathematics
Trigonometric Ratios & Identities
2025
NDA 2025 (Phase 1)
NDA Mathematics Question (2025) — Solution
Options
- A. 1 2
- B. 1
- C. 3 4
- D. 2
Answer
C. 3 4
Step-by-step solution
Given 2 + = 2 Dividing both sides by , we get: 2 + 1 = 2 Squaring both sides: (2 + 1)^2 = 4 ^2 4 ^2 + 4 + 1 = 4(1 + ^2 ) 4 ^2 + 4 + 1 = 4 + 4 ^2 4 = 3 = 3 4 Answer: 3 4
Related: Mathematics — Trigonometric Ratios & Identities · All PYQ Banks